问题描述：
Because of bad weather the plane was_____for half an hour.
A.prolonged B.delayed C.postponed D.put off
后三项都有推迟的意思，改怎么区别呢？
问题解答：
我来补答
选B.
从牛津高阶英语词典中找到这个例句
Thousands of commuters were delayed for over an hour.
补充：
postpone意为“使某事物延期; 推迟某事物” （英文释义to arrange for an event,etc.to take place at a later time or date）常用搭配为 postpone sth (to / until sth).例句：
The match was postponed to the following Saturday because of bad weather.
put off作“推迟”时和它的用法差不多.例句：He decided that he would put off his tour of inspection till the next day.
delay除了有“推迟”之意（此时它的用法和上二者相同）以外,还可以以sb为宾语,例句：What could have delayed him?
另外,针对你的选择题,我只见过delay后面跟时间段,例句：She delayed (for) two hours and missed the train.
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